A big garage profiteer seeks to sabotage a British father and his children's chances of winning an Alpine motor car rally, the 500 prize money from which would preserve their small and struggling garage business. Continental motor racing adventure Heights of Danger (1953) features Basil Appleby and Freda Bamford but the real star is the MG TD Sports Car - tenacious and reliable to the last amidst the twisting and mountainous road condtions, through the picturesque "Edelweiss Pass" and through all the villain's devious attempts to scupper its ultimate victory!